Improvement in tobacco-pipes



UNITED A STATES PATENT OEEIoE.

HOWARD B. STEPHENSON, OF TROY, NEW YORK, AssIe oR 0F ONE-HALF 111s RIGHT T0 WILLIAM H. BENNETT, OF NEW YORK oITY.

IMPROVEM ENT IN TOBACCO-PIPES.

V Specification forming part of Letters Patent No. 173,079, dated February 1, 1876; application filed January 19,1876.

To all whomtt may concern Be it known that I, HOWARD B. STEPHEN- .soN, of Troy, New York, have invented an Improvement in Tobacco-Pipe Stems, of which the following is a specification The invention is fully illustrated in the accompanying drawings, which, forming a part of this specification,illustrate in Figure 1 a sectional view of a pipe furnished with my improvement, in Fig. 2 a transverse section thereof, and in Fig. 3 a section of one end of a pipe-stein. 4

In pipes for smoking tobacco or other substance, great inconvenience has arisen from the deposit of nicotine upon the interior of the stem to such an extent as to render frequent cleansing necessary ,and while this renovation of them partially cures this evil, the stem ulti- 'inately becomes so impregnated with this noxious substance as to render it wholly unfit for further use, and a 'new stem is required.

My invention is designed to provide a pipe with a stem which shall be proof against this saturation of its body with nicotine 'or saliva impregnated; therewith, and which can be readily .cleansed'and kept pure; and it I consists in providing a wood or other fibrous,

or even an elastic, stem with a lining of vitreous substance, which lining may be removed,

cleaned, and replaced with facility.

Many devices have been applied to pipes to receive the deposit of nicotine and prevent its deposit in the stem, such as drip-cups, fountains, filters, and the like; but they have failed to afford a protection which permanently prevents the fouling of the stem, which, from its porous nature, soon absorbs nicotine held in suspension in the smoke passing through the stem to a degree sufficient to render it foul and unwholesome. In the construction devised by me this defect is remedied. I provide the stem A,-which is of the common construction, with an interior conduit, B, of glass or other vitreoussubstance, which forms a lining which will resist the accumulation of the semi-liquid nicotine. One end of this stem is shaped to fit into the bowl C in the usual manner, and its oppositeend is provided with a mouth-piece, D, screwed into the coupling -E, which is provided with the usual internal threads for this purpose.

The vitreous lining of the stem is, preferably,

a glass tube, which may be held in place by any common mode of fastening; but an advantageous means is found in the enlargedupper end a, which forms a horizontal shoulder adapted to seat itself upon the neck b of the stem A.

In order that a vacuum may be produced in the stem in the process of smoking, it is necessary that the vitreous lining shall be packed at some point between the mouthpiece and bowl, and this may be done by a rubber washer, 0, held in a recess in the stem; but it is convenient to place this washer at the mouth of the stem, as at d, since that arrangement enables one to remove the tube,-

with the coupling E, by simply unscrewing the latter by reason of the frictional contact of the said parts. i

It has been found to be desirable to provide a recess or shoulder-bearing for the rubber washer, as is in Fig. 3, which construction insures the removal of the tube with the coup- LY, I

H. B. STEPHENSON.

Witnesses:

JAMES A. LEONARD, W. H. BE NETT. 

